sourceObject = $sourceObject;
$this->keyField = $keyField;
$this->labelField = $labelField;
parent::__construct($name, $title);
}
function setFilterFunction($filterFunc) {
$this->filterFunc = $filterFunc;
}
/**
* Set the root node of the tree. Defaults to 0, ie, the whole tree
*/
function setTreeBaseID($treeBaseID) {
$this->treeBaseID = $treeBaseID;
}
function Field() {
Requirements::javascript(THIRDPARTY_DIR . "/prototype.js");
Requirements::javascript(THIRDPARTY_DIR . "/behaviour.js");
Requirements::javascript(THIRDPARTY_DIR . "/prototype_improvements.js");
Requirements::css(SAPPHIRE_DIR . '/css/TreeDropdownField.css');
Requirements::javascript(THIRDPARTY_DIR . "/tree/tree.js");
Requirements::css(THIRDPARTY_DIR . "/tree/tree.css");
Requirements::add_i18n_javascript(SAPPHIRE_DIR . '/javascript/lang');
Requirements::javascript(SAPPHIRE_DIR . "/javascript/TreeSelectorField.js");
if($this->value) {
$record = $this->getByKey($this->value);
$title = ($record) ? $record->Title : _t('DropdownField.CHOOSE', "(Choose)", PR_MEDIUM, 'Start-value of a dropdown');
} else {
$title = _t('DropdownField.CHOOSE', "(Choose)", PR_MEDIUM, 'Start-value of a dropdown');
}
$id = $this->id();
$classes = "TreeDropdownField single";
if($this->extraClass()) $classes .= ' ' . $this->extraClass();
return <<$title
HTML;
}
/**
* Return the site tree
*/
function gettree() {
if($this->treeBaseID) $obj = DataObject::get_by_id($this->sourceObject, $this->treeBaseID);
else $obj = singleton($this->sourceObject);
if($this->filterFunc) $obj->setMarkingFilterFunction($this->filterFunc);
else if($this->sourceObject == 'Folder') $obj->setMarkingFilter('ClassName', 'Folder');
$obj->markPartialTree();
// If we've already got values selected, make sure that we've got them in our tree
if($_REQUEST['forceValues']) {
$forceValues = split(" *, *", trim($_REQUEST['forceValues']));
foreach($forceValues as $value) {
$obj->markToExpose($this->getByKey($value));
}
}
$eval = '"name . '-$child->' . $this->keyField . '\" class=\"$child->class" . $child->markingClasses() . "\">" . $child->' . $this->labelField . ' . ""';
echo $obj->getChildrenAsUL("class=\"tree\"", $eval, null, true);
}
/**
* Return a subtree via Ajax
*/
public function getsubtree() {
$obj = $this->getByKey($_REQUEST['SubtreeRootID']);
if(!$obj) user_error("Can't find database record $this->sourceObject with $this->keyField = $_REQUEST[SubtreeRootID]", E_USER_ERROR);
if($this->filterFunc) $obj->setMarkingFilterFunction($this->filterFunc);
else if($this->sourceObject == 'Folder') $obj->setMarkingFilter('ClassName', 'Folder');
$obj->markPartialTree();
$eval = '"name . '-$child->' . $this->keyField . '\" class=\"$child->class" . $child->markingClasses() . "\">" . $child->' . $this->labelField . ' . ""';
$tree = $obj->getChildrenAsUL("", $eval, null, true);
echo substr(trim($tree), 4,-5);
}
/**
* @return DataObject
*/
public function getByKey($key) {
if($this->keyField == 'ID') {
return DataObject::get_by_id($this->sourceObject, $key);
} else {
$SQL_key = Convert::raw2sql($key);
return DataObject::get_one($this->sourceObject, "$this->keyField = '$SQL_key'");
}
}
/**
* Return the stack of values to be traversed to find the given key in the database
*/
public function getstack() {
$page = $this->getByKey($_REQUEST['SubtreeRootID']);
while($page->ParentID) {
echo $ids[] = $page->ID;
$page = $page->Parent;
}
$ids[] = $page->ID;
echo implode(",", array_reverse($ids));
}
function performReadonlyTransformation() {
$fieldName = $this->labelField;
if($this->value) {
$obj = ($this->getByKey($this->value)) ? $this->getByKey($this->value)->$fieldName : '';
} else {
$obj = null;
}
$source = array(
$this->value => $obj
);
$field = new LookupField($this->name, $this->title, $source);
$field->setValue($this->value);
$field->setForm($this->form);
$field->setReadonly(true);
return $field;
}
}
?>